Concrete block mold



Aug 15, 1944 n M. E. GREENWALT 2,355,967

CONCRETE BLOCK MOLD Filedo'ot. 29, 194:5 s sheets-sheet 1 .Z'esl A y I v @gum Z 262 WWW Aug.l15,1944. MQ; GRENWALT 2,355,967

CONCRETE BLOCK MOLD Filed Oct. 29, 1943 3 SheevtS-Sheet 2 Bf WWW Aug- 15, 1944- M. E'GREENWALT v 2,355,967

CONCRETE BLOCK MOLD Filed Oct. 29, 1943 3 Sheets-Sheet 3 111 1 'cl/tor WWW Patented Aug. 15, 1944 UNITED vSTATES PAT-,Eur onirica; 3' 2,355,967r

" j. -CONCRETE'BLOCK MOLD i l y,f''iviarin'1li. Grenwait, Eivins, M6. i 'y y f .i Application. october 29, 1943, serialNo. 508,125y l .f4 Claims.v (9;.2'54-121) The present invention relates to newand'us'e-f ful'improvements in masonry block molds, and has: for its :primary object, to provide, in a manner ashereinafter set forth, anf apparatusv of thisi; charactercomprising a noveliconstruction andgarrangement whereby fullblocks, half-blocks, cor-` i ner iblocks, et cetera, having'imitationfbrick faces 1 may be rapidly and economically formed.

Other objects of the `invention are to .provide a block mold of the aforementioned character which will be comparatively simplein construction, strong, durable,fhighly efficient `and reliable in use, compact, `and which may be manufactured atlowcost. l H I .v A 1 VAll of -the foregoing and still further objects andadvantages of thev invention fwillbecomeapparent from a studyofthe following specification,xtaken in connection with the'accompany'- ing drawings wherein like characters of reference' designate corresponding parts throughout the several views, and wherein:

;.ing the side walls 1 inwardly against the Figure 1 is a top plan View of a.. moldcon-,li

structed in accordance with the present inven- 131011'. i w i i` l Figure 2 is a view in sidefelevation thereof.

Figure 3 'is an end "elevational view.

Figure 4 is a view in vertical longitudinal section through the mold, taken substantially on the line 4-4 of Figure 1.

Figure 5 is a fragmentary view in cross section, taken substantially on the line 5-5 of Figure 1.

Figure 6 is an elevational view of one of the blocks, looking at the face thereof.

Figure 7 is a perspective View of one of the stepped fillers.

Figure 8 is a perspective view of one of the core units.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which hasbeen illustrated comprises a base structure which is designated generally by reference numeral I. The lbase I includes transverse pairs of spaced bars 2 of angle iron which are mounted on the upper end portions of pairs of crossed supporting legs 3. The upper end portions of the legs 3 are secured at 4 between the end portions of the pairs of bars 2.

Secured on the bars 2 is a pair of spaced, parallel, elongated bottom fplates 5 of sheet metal. Pins 6 extend between the pairs of bars 2 inwardly of the leg connections 4. Side walls I are mounted for swinging movement on the pins 6 through the medium of hinge eyes 8. Pairs of spaced angle irons 9 are mounted longitudinally on the outer sides of the walls 'l for strengthpose Vof which notches will be-presently set forth. V Cleats I I in the form of angle irons arefixed vertically .on the 'end'portionsfof the walls 1, o n theinner sides-thereof. .-Theg'cleatsA II also have notches therein which are in registrywith4 the `notches I0. .--Websll2 `Connect thepairs cfg-bars 9. Removable andvertically adjustable end walls y I3 are' mounted vbetween the end portions of the side walls I and rest `against thegcleatslL A End walls I3 have xed oni their outer sides yertical istakes I4 which are -slidablyvengagedyingopenings which are provided therefor in the enudmportions of the bottom plates Sand the outermost lbarsZ. Transverse rodsI5 aremounted between the: end portions of the pairs vof bars 9 for drawends of the Walls I3, the notcheslll in said side walls 'I and in the cleats II accommodatingsaidrods.

The rods I5 areprovided withA heads I6 onone end and with nuts ILon theirlother end portions.

nal partition I8 rests on the cross bars 2j between the spaced bottom plates 5. The end walls I3 have formed therein vertical grooves I 9 in which the end portions of the partition I8 are engaged. Mounted on the bottom plates 5 on opposite sides of the partition I8 are pattern or lining plates 20. The lining plates 20 project beneath the end walls I3 and have formed in their end portions openings which accommodate the stakes I4. The lining plates 20 include upstanding ribs 2I which form the representations of joints between the imitation bricks in the nished blocks. The ribs 2| are slightly tapered to facilitate separation of the blocks therefrom.

It is thought that the operation of the invention as thus far described will be readily apparent from a consideration of the foregoing. Briefly, the partition I8 is positioned between the bottom plates 5, the linings 20 are mounted on said bottom plates, after which the end walls I3 are placed in position. The side walls 'I are then swung upwardly and inwardly against the ends of the walls I3 and rmly secured through the medium of the rods I5. The material may then be poured. To remove the blocks after the concrete has set, the side walls 'I are released and swung downwardly and the end walls I3 are removed.

In the above-described operation, elongated In the embodiment shownja 'yiticaiiongimdi 22 are placed in either or neath the end walls I3 and which have formed.A

in their end portions openings 25 for the` passage of the stakes I4. Thus, the plates 24 are positively secured against longitudinal or lateral movement. Rising from the plates 24 are substantiallysegmental, transverse cores 26 which form the recesses in the blocks when the material is poured thereon.

'--In Figure 6 of the drawings, a nished face i blockl :is shown at 21, said block including imita tionb'ri'cks 2B with joints 29 therebetween. vThe imitation-*bricks and joints 28 and 29, respectively, may be painted or otherwise treated as desi-red.`Y

It is believed that themany advantagesrof a concrete block mold constructedin accordance with the prseent invention will be readily understood, and although a preferred embodiment of the device is as illustrated and described, itis to be understood thatchanges in the details of constructionand in the combination and. arrangement oi parts may be resorted to which will fall within the scope of the invention as claimed. i i

What is `claimed is:

1. A mold comprising a base, a bottom plate mounted on said base, a lining removably mounted on the bottom plate, said lining and bottom plate having registering openings therein, end-'walls removably mounted on the lining, stakes on the end walls engaged in the openings, side walls hingedly mounted on the base, and means for securing said ends of the endwalls.

side walls against the securing said side walls against the ends of the end walls.

3. A'moldcomprising a base, a pair of spaced bottom plates mounted on said base, a pair of spaced linings removably mounted on the bottom plates-said linings, bottom plates and the base structure having aligned openings therein, end walls removably mounted on the end portions of the linings, vertical stakes on the end walls engagedfin the openings, said end walls having vertical grooves therein, a vertical partition resting'on the base structure and passing between the pairs of bottom plates and linings, the end portions of said partition being engaged in the grooves, side plates hingedly mounted on the base structure, and means for releasably securing said side plates against the ends of said end walls.

4. A block mold comprising a base structure including pairs of spaced cross members and supporting legs secured to said cross members, a bottom plate xed on the cross members, a liningremovably mounted Von said bottom plate, said lining, the bottom plate and certain of the cross' members having aligned openings therein, said lining comprising a plate and substantially segmental cores rising therefrom, removable end walls mounted on the lining, stakes on the end walls engaged in the. openings, side walls hingedly mounted between the pairs of cross members and engageable with the ends of the end walls, and means for releasably securing said side walls'against said end walls.

MARION E. GREENWALT. 

